Nagios check_sip plugin (C)Copyright 2005-2006,2008 Bashton Ltd
---------------------------------------------------------------

A Nagios plugin to test SIP servers.
Licensed under the GNU GPL v2.0 or later (at your option).  For
full copyright and warranty details, please see the COPYING file included in
this package.

By Sam Bashton, Bashton Ltd - sam@bashton.com www.bashton.com
   Michael Hirschbichler, Institute of Broadband Communications, 
                          Vienna University of Technology

Comments, bug reports etc are welcome.

Pre-Requisites
--------------

- Working Nagios install
- Perl 5 (tested with Perl 5.6.1 and 5.8)

Installation
------------

- Copy to your nagios plugins directory (possibly /usr/lib/nagios/plugins)
- Add check_sip to your nagios config.  This may be in the file 
  'checkcommands.cfg', or under /etc/nagios-plugins/config (under Debian) 
  An example:

/etc/nagios-plugins/config/sip.cfg
define command{
        command_name    /usr/lib/nagios/plugins/check_sip
	command_line    $USER1$/check_sip -u $ARG1$ -H $HOSTADDRESS$ -w 5
}

- Alter your services.cfg to include a check against the check_sip command, 
e.g.:

define service{
        use                             generic-service
        host_name                       bubblegum
        service_description             SIP test
        check_command                   check_sip!sip:sip@voip.bashton.com
        contact_groups                  voip-admins
        max_check_attempts              4
        normal_check_interval           5
        retry_check_interval            1
        notification_interval           240
        check_period                    24x7
        notification_period             24x7
        notification_options            c,r
}

Variables
---------

check_sip requires the following variable:

  -u  Full SIP uri, eg sip:uri@example.com

The following optional variables are also available:

  -f From SIP uri
  -H Host to connect to
  -p Port to connect to
  -w Seconds after which to respond with a warning
  -s Switch off standard behavior: after this, all SIP-responses are counted 
      as success

Known bugs/issues
-----------------

check_sip does not presently support SRV records.  You can use the -H and -p
options to query the correct host.
You may need to use external Perl by adding /usr/bin/perl before the check 
command.